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Slow Cooker Pork Shoulder with Zesty Basil Sauce

This slow cooker pork shoulder with zesty basil sauce is a wonderful choice for a stress-free Sunday roast or a nutritious midweek meal. The gentle heat of the slow cooker transforms the pork shoulder into a succulently tender joint, infused with a savoury rub of garlic, wholegrain mustard, and smoked paprika. To contrast the rich, melt-in-the-mouth meat, a vibrant green sauce made with fresh basil and brightening lemon juice is drizzled over just before serving.

As a diabetes-friendly main course, this recipe prioritises high-quality protein and heart-healthy fats from extra virgin olive oil while keeping refined carbohydrates to a minimum. The herb-heavy sauce provides a punch of fresh flavour without the need for sugary glazes or heavy gravies. Serve this versatile dish with a side of steamed seasonal greens or a crisp salad for a balanced, wholesome dinner that the entire family will enjoy.

Continue reading below

Ingredients for Slow Cooker Pork Shoulder with Zesty Basil Sauce

  • 8 garlic cloves, finely chopped

  • 60ml olive oil

  • 45ml whole grain mustard

  • 3 tablespoons light brown sugar

  • 2 tablespoons kosher salt

  • 2 teaspoons freshly ground black pepper

  • 2 teaspoons oregano leaves, finely chopped

  • 1 1/2 teaspoons smoked paprika

  • 1 skinless, boneless pork shoulder roast, tied (Boston butt

  • about 2.7kg )

  • 1 large shallot, finely chopped

  • 2 cups basil leaves, finely chopped

  • 1 1/4 cups extra virgin olive oil

  • 1/4 cup oregano leaves, finely chopped

  • 1 teaspoon crushed red pepper flakes

  • 1 teaspoon kosher salt

  • 120ml fresh lemon juice

  • A (4-quart) slow cooker

Cook the pork: Mix garlic, oil, mustard, brown sugar, salt, pepper, oregano, and paprika in a small bowl to form a paste. Rub all over pork, then transfer to a resealable plastic bag or slow cooker insert and chill overnight.

Place pork in slow cooker, cover, and cook on low until meat is fork-tender but not yet completely falling apart, 7 1/2–8 hours.

Meanwhile, make the sauce: Mix shallot, basil, oil, oregano, red pepper flakes, and salt in an airtight container. Cover and let rest up to 3 hours at temperature or up to 2 days in refrigerator. Stir in lemon juice just before using.

Transfer pork to a cutting board and let rest 5 minutes. Slice and transfer to a platter. Drizzle with sauce and serve with additional sauce alongside.

Pork can be rubbed 2 days ahead; chill in an airtight container. Sauce, without lemon juice, can be made 2 days ahead; chill in an airtight container.

Disclaimer

While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 28 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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